Sash-cord guide



(N6 Modem G. P. DOEBLER.

SASH 00m) GUIDE.

No. 581,273. Patented Apr. 27, 1897.

Wit n asses Inventor: 6. flan/a fioebler.

UNITED STATES PATENT FFICE,

CHARLES F. DOEBLER, OF HARTFORD, CONNECTICUT.

SASHI-CORD GUIDE.

SPECIFICATION forming part of Letters Patent No. 581 ,2'73, dated April27, 1897.

Application filed July 11, 1896. Serial No. 598,785. (No modelr) To allwhom it may concern.-

Be it known that I, CHARLES F. DOEBLER, a citizen of the United States,residing in Hartford, in the county of Hartford and State ofConnecticut, have invented certain new and useful Improvements in SashCord Guides, of which the following is a specification.

This invention relates to sash-cord guides, and more particularly to thepulley-casings thereof; and the object ofthe invention is to provide animproved casing which can be quickly and easily constructed and will becomparatively inexpensive in its manufacture.

In the drawings accompanying and forming part of this specification,Figure 1 is a side view of this improved sash-cord guide. Fig. 2 is afront View thereof. Fig. 3 is a rear view thereof. Fig. 4 is alongitudinal sectional view taken in line a a, Fig. 3. Fig. 5 is an endView of the deviceshown in Fig. 1, looking downward; and Fig. 6 is anend View of said device, looking upward. Fig. 7 is a View of theface-plate detached. Fig. 8 is an under side view of the casingdetached. Fig. 9 is a plan view of a blank from which the casing membershown in Figs. 1 to Sis formed.

Similar characters designate like parts in all the figures of thedrawings.

Owing to the necessity of constructing buildings and tenements with theleast possible expense, it is essential that the hardware used in thestructures, and which forms an important part in the cost thereof, bemanufactured as inexpensively as possible, and as sash-cord guides formone of the main items of this class of material the ingenuity ofinventors has been taxed to obtain an article of this character whichcan be produced with the least possible cost commensurate with strengthand durability, and in order to accomplish this object I have providedan improved sash-cord casing which, owing to its peculiar construction,can be manufactured at an extremely low cost and which will also bedurable and efficient in use. It will be understood, however, that thisimproved construction of pulley-casing might be used in other devicesand for other purposes than as a sash-cord guide, if desired. In thepreferred form thereof herein shown and described the casing comprises aface-plate 10, of any suitable and desired construction, having apulley-opening 11 and apertures 10 for the reception of thecasing-member-fastening devices.

The casin g member 12, which is an integral structure in its preferredform, is struck from sheet metal and has the usual pulley-opening 13,and in one construction thereof the casing-blank is bent longitudinallyin line with such opening 13 to thereby form its two parallel walls orsides 14, connected at one end by a transverse inwardly extending flangeor bridge 15, integral with the two sides, and united at the other endby a substantially similar transverse inwardly-extending flange. orbridge 16, likewise integral with such sides, one of said bridges, as16, having a curved outer edge 17. These bridges when in position on theface-plate extend across and form the ends of the pulley-opening 13. Thetwo ends 18 of the parallel sides 14 are then bent to have their freeedges contiguous and thereby form the curved closed end 19 of thepulley-casing.

When window sashes having weighted ropes are employed, there is usuallya slight lateral movement of the weight and rope in the guideway of theframe, which is sufficient to permit a frictional engagement of the ropewith the edge of the pulley-casing should the same project adjacent tothe periphery of the pulley, and thereby sever the cord in a short time.In order to overcome this disadvantage, the pulley-casing in myconstruction is cut away, as at 19, preferably from the axial line ofthe pulley to the under side of the periphery thereof, to thereby havethe edge 19 of the curved end 19 of the casing-member as far as possiblefrom the rope, and thus prevent all possible frictional contacttherewith, and whereby also the casing-walls will be somewhat larger atthat end thereof which is adjacent to the cord-supporting surface of thepulley, so that the cord will be prevented from slipping laterally offthe wheel when the device is in use. As one means of securing this formof casing to the face-plate the bridges 15 and 16 are provided withapertures 20 for the reception of suitable, fastening devices, such asrivets 20, which enter suitable apertures 21 in the face-plate. In thisform of casing member the curved end 19 thereof is necessarily dividedin order to permit the longitudinal bending of the casing-walls and theproper shaping of the device.

The blank A, Fig. 9, of which this particular construction of easingmember is formed, in its unbent condition comprises two side membersaand I), each of which substantially forms an ogee curve at its freelongitudinal edge, whereby when bent into position to form the casingmember one part of such side 1n embers will be of greater width than theother part thereof. Centrally of these side members a and b is anelongated slot 0, the ends of which are formed by twotransversely-extending members (1 and d and by means of which the twoside members a and b are connected at their inner longitudinal edges,one of which members, as cl, preferably has a curved outer edge c, saidmember cl being formed slightlyback from the ends of the side members CLand 1), whereby when said side members are bent into position such endscan be turned around the curved edge of the member 61'.

By having the bridges l5 and 16 on the inside of the ends not only canthe device be constructed more quickly and with less expense, but thenecessity of forming a deep recess in the window-frame for the receptionof the ends 40 of the faceplate, as would be the case if the fasteningmeans extended outside of the ends of the casing, is obviated.

In order to strengthen the casing member, a portion 36 of each of theside walls is depressed, which depressed portion also constitutes ameans for preventing lateral movement of the pulley 37 when in positionon its axle 38.

Having described my invention, I claim- 1. A p-ulleycasing comprising aface-plate having a pulley-opening and an integral casing member, saidmember comprising two parallel sides having a series of flanges formingbridges intermediate of its sides and adapted to rest on the face-plateat the ends of said pulley-0pening; one of said flanges a curved endwall, and means extending through said flanges for securing the casingmember to the face-plate.

2. A pulley-casin g comprising a face-plate having a pulley-opening andan integral casing member, said member having two parallel sides cutawayto form an enlarged end at the cord-supporting part of the pulley, witha series of flanges forming bridges intermediate its sides and adaptedto rest on the faceplate at the ends of said pulley-opening, one of saidflanges having an outer edge around which the ends of the casing memberare bent to form an end wall; in combination with a pulley mountedbetween the sides of said casing, substantially as and for the purposespecified.

3. A pulley-casing comprising a face-plate having a pulley-openin g andan integral casing member having two parallel sides provided withtransversely-extending bridges or flanges integral with the sides andadapted to rest on the face-plate at the ends of said pulley-opening andbe secured thereto by fastening devices extending through said bridgesor flanges, one of said flanges havin g a curved, outer edge aroundwhich the ends of the casing member are bent to form a curved end wall,and said casing member-having its sides cut away adjacent to the curvedend thereof to form an enlarged end adjacent to the cordsupportingsurface of the pulley.

4:. A blank comprising two members of greater width at one part than atthe other part thereof and having an elongated slot intermediate thereofand joined at their inner longitudinal edges at the ends of said slot bycross members, one of which has an outer,

curved edge.

CHARLES F. DOEBLER. W'itnesses:

FRED. J. DOLE, HENRY BIssELL.

